32131013221 has 8 divisors (see below), whose sum is σ = 33911367200. Its totient is φ = 30359584080.

The previous prime is 32131013153. The next prime is 32131013227. The reversal of 32131013221 is 12231013123.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 32131013221 - 2⁹ = 32131012709 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32131013227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2223810 + ... + 2238211.

It is an arithmetic number, because the mean of its divisors is an integer number (4238920900).

Almost surely, 2^32131013221 is an apocalyptic number.

It is an amenable number.

32131013221 is a deficient number, since it is larger than the sum of its proper divisors (1780353979).

32131013221 is a wasteful number, since it uses less digits than its factorization.

32131013221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4462419.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 32131013221 its reverse (12231013123), we get a palindrome (44362026344).

The spelling of 32131013221 in words is "thirty-two billion, one hundred thirty-one million, thirteen thousand, two hundred twenty-one".